Language Advisory: This is a live concert recording, and may not contain language suitable for all audiences.

Language Advisory: This is a live concert recording, and may not contain language suitable for all audiences.

Thousands rode their bikes Sunday for the 24th annual Rolling Thunder event from the Pentagon to the National Mall, a Memorial Day weekend tradition in Washington, D.C. There was a new rider this year: potential presidential candidate Sarah Palin, astride a Harley.

Many in the crowd were excited to see her, but some worried that her presence could distract from the day's message. But there was no doubt, Palin draws a crowd — even in a crowd.

She rode up on the back of a motorcycle in a black leather jacket, black flared pants, black heels and a wide smile.

Language Advisory: This is a live concert recording, and may not contain language suitable for all audiences.

A genre-hating musician with roots everywhere from Toronto to Trinidad, k-os lets his music sprawl across the disparate worlds of hip-hop, reggae, electronic music, indie rock, soul and so on. As such, it's tough to place him within any given scene — which is no doubt what he had in mind — but k-os' socially conscious songwriting and charisma have helped him win a crop of loyal fans anyway. His newest album is 2009's Yes!

Some 1,700 residents of the Jessup Correctional Institution in Maryland make very good use of their library. Most inmates will never win early release, so the library becomes a place to improve reading skills, write a letter home, watch an instructional video on auto mechanics or just escape, mentally. Host Liane Hansen visits the prison to talk with longtime prison librarian Glennor Shirley. Shirley runs the libraries for the entire Maryland prison system.

The former Bosnian Serb general Ratko Mladic was arrested in Serbia this past week. He is wanted by an international tribunal in Yugoslavia for genocide and war crimes, and he could be extradited to face trial in The Hague as soon as Monday. His arrest, after a 16-year man hunt, is unpopular with Serb nationalists, but it removes a major obstacle to Serbia starting the process of joining the European Union. NPR's Sylvia Poggioli joins us from Belgrade.

Hundreds of Palestinians crossed the newly opened border between Egypt and the Gaza Strip Saturday. NPR's Soraya Nelson reports that the move by the Egyptian government was met with restraint by Israel but joy by those who have been locked out by travel restrictions.

In Alabama, many residents are still picking up the pieces after a wave of deadly tornadoes in April. The storms killed more than 200 and destroyed thousands of homes. In the hard-hit city of Tuscaloosa this weekend, a photographer is helping families replace something that seems irreplaceable: family portraits. Bradley George has more from member station WBHM.

In Joplin, Mo., the search operation continues with hundreds of firemen and volunteers and dozens of trained dogs, as they comb fields, ponds and ruins. NPR's Wade Goodwyn reports.

When the Army Corps of Engineers opened the Morganza spillway two weeks ago to help divert that water from cities further downstream, all that water had to go somewhere. Host Liane Hansen speaks with Motivatit Seafoods President Mike Voisin about the effects of the flooding in the South on the fisheries industry.